Passive voice: 1. People will forget it very soon. 2. They will translate this work next year. 3. They will tell you when to come. 4. Where will they build a new library? 5. Someone will ask him about it.

1. People will forget it very soon. - It will soon be forgotten by people.

2. They will translate this work next year. - This work will be translated by them next year.

3. They will tell you when to come. - You will be told when to come.

4. Where will they build a new library? - Where will a new library be built?

5. Someone will ask him about it. - He will be asked about it.